Programming and Software Development

Programming languages, frameworks, tools, DevOps, open source, and software engineering.

16 Articles

Programming and Software Development

Compose HTML: Exploring a Server-Side Web UI Rendering Path in Kotlin

A JetBrains Blog article explores the possibility of adding a JVM target to Compose HTML to enable server-side HTML page generation using type-safe Compose components while retaining Kotlin instead of traditional view templates. The source emphasizes that the idea remains exploratory and is not an official commitment or roadmap, while it could provide a shared foundation for frameworks such as Kobweb, Kilua, and Summon.

2026-08-14

Programming and Software Development

Adding Routing and Failover Tools to Microsoft.Extensions.AI

The .NET team announced four new experimental types that enable routing AI requests among models and service providers, performing failover when one of them becomes unavailable, and building custom routing policies within Microsoft.Extensions.AI.

2026-08-13

Programming and Software Development

How to Write Effective Instruction Files for AI-Powered Coding Agents

The article explains that modern AI models need knowledge of local decisions and constraints that are difficult to infer, not general guidance or lengthy procedural instructions. It presents a methodology for reviewing instruction files by retaining information that affects outcomes, deleting what tools enforce or models can discover, and moving rules to the appropriate scope.

2026-08-12

Programming and Software Development

How Developers Move Between Programming Languages: From Project Requirements to the Kotlin Experience

JetBrains analyzes data from the 2025 Developer Ecosystem Survey to track actual movement between programming languages rather than relying solely on developers’ future plans. The findings reveal that project requirements drive most transitions, while Kotlin attracts users seeking a better development experience and more modern features.

2026-08-12

Programming and Software Development

JetBrains Reveals Key PyCharm 2026.2.1 Updates for AI Agent Support and Interactive Notebooks

PyCharm 2026.2.1 adds support for AI agents to work inside Jupyter notebooks using a live runtime kernel, along with directing package installation operations to the correct Python environment. The release also introduces support for marimo notebooks, improvements to package management and type checking, and changes to bundled plugins.

2026-08-12

Programming and Software Development

PyCharm Coordinates Python Environments for AI Agents and Raises Task Success to 98%

The Agent Environment Coordinator skill enables AI agents to identify the interpreter and Python environment associated with a project before executing commands. According to a JetBrains test involving six models and 28 tasks, the average success rate rose from 68% without access to the project environment to 98% when the skill was enabled.

2026-08-12

Programming and Software Development

JetBrains Gives AI Agents a Live Jupyter Kernel Inside PyCharm

JetBrains has launched a new Jupyter skill inside PyCharm that allows AI agents to work directly on a live kernel while preserving the state of data and models between cells. The company says tests showed lower costs with Claude Opus 5 during long-running tasks, while the benefit depends on the model and the nature of the task.

2026-08-12

Programming and Software Development

Availability of .NET 11 Preview 7 with Extensive Updates to Libraries, SDK, and ASP.NET Core

Microsoft announced the availability of .NET 11 Preview 7, including improvements to the libraries, runtime, SDK, C#, ASP.NET Core, .NET MAUI, Entity Framework Core, F#, and Windows Forms. Developers can begin by installing the .NET 11 SDK, while Windows users are advised to install the latest version of Visual Studio 2026 Insiders.

2026-08-11

Programming and Software Development

WebStorm Enables Switching Between AI Agents via the ACP Protocol

JetBrains has added support for the Agent Client Protocol to WebStorm, enabling developers to use multiple AI agents from within the same development environment, including agents associated with their existing subscriptions. The protocol also enables connecting custom agents and controlling the infrastructure and where data is processed.

2026-08-11

Programming and Software Development

New MCP Release Rebuilds the Protocol to Operate Without Stateful Sessions

The 2026-07-28 release of the Model Context Protocol has become stateless, enabling MCP servers to run on Cloudflare Workers without dedicated infrastructure for session management. The release includes changes to multi-round interactions, authorization, and the feature lifecycle, along with updated SDK packages and a migration path for existing applications.

2026-08-06

Programming and Software Development

How Microsoft.Testing.Platform Turns Failed Test Results into Actionable Evidence

The .NET Blog presents practical practices for using Microsoft.Testing.Platform to improve test reporting in GitHub Actions and Azure DevOps by distinguishing regressions from flaky failures and preserving evidence when the test host crashes. It also explains how to choose report formats, centralize repository-level settings, and avoid compatibility issues and duplicate result publishing.

2026-08-06

Programming and Software Development

How GitHub Made Case Folding Run at Memory Speed

GitHub explains how it increased case folding speed in the Blackbird code search engine to more than 45 gigabytes per second on a single core by removing control-flow branches from the fast path and processing Unicode with byte-level arithmetic. The company has made this methodology available in an open-source Rust library called casefold.

2026-07-31

Programming and Software Development

Microsoft Launches Open-Source Agent for Generating and Validating Unit Tests

Microsoft announced the open-source code-testing-generator agent, capable of understanding a project repository, identifying the testing framework, writing unit tests, and verifying that they build and run. The agent achieved a 92.1% completion rate in an internal test of 152 tasks, compared with 78.9% for standard Copilot using the same model.

2026-07-31

Programming and Software Development

Why Do Developers Become Attached to Their Tools? Because They Embody Trust in the Development Process

The article discusses how developers’ trust in tools is shaped by familiarity and clear processes, and why AI agentic coding tools reveal weaknesses in the software development life cycle instead of automatically solving them. It concludes that building trust requires human responsibility and processes that can be shared and improved, not merely new tools.

2026-07-29

Programming and Software Development

Microsoft Launches Version 2.0 of the Official MCP Package for C#

The new release is compatible with the MCP specification dated 2026-07-28, adopts a stateless mode by default, standardizes HTTP headers, and supports multi-round-trip requests for handling interactive tools. The release maintains broad compatibility with previous code, clients, and servers, with the exception of the experimental Tasks extension.

2026-07-28

Programming and Software Development

MSBuild Binlog Analyzer Extension Enables Build Log Analysis via Copilot Inside VS Code

Microsoft has released the MSBuild Binlog Analyzer for VS Code extension in preview, enabling binary MSBuild log analysis, explanations of build failures, performance comparisons, and regression detection through GitHub Copilot. The extension relies on the Microsoft.AITools.BinlogMcp server and requires VS Code 1.99 or later, GitHub Copilot, and the .NET SDK.

2026-07-27